Photocurable light-sensitive composition

Abstract

A photocurable composition comprising a first copolymer having a recurring unit of general formula (I): ##STR1## wherein Ar represents a substituted or unsubstituted phenyl group, R.sub.1 represents a lower alkyl group, and m.sub.1 and m.sub.2 are positive numbers with m.sub.1 being greater than or equal to m.sub.2 ; and a second copolymer having a recurring unit of general formula (II): ##STR2## wherein R.sub.2 represents a lower alkyl group, X represents a hydrogen atom or a methyl group, and R.sub.3 represents an isobutyl group, a t-butyl group or a --CH.sub.2 Ar group where Ar represents a substituted or unsubstituted phenyl group and when R.sub.3 is --CH.sub.2 Ar, R.sub.2 can also be t-butyl and isobutyl, and n.sub.1, n.sub.2 and n.sub.3 are positive numbers but n.sub.1 can be zero and (n.sub.1 +n.sub.2)/n.sub.3 equals to about 0.5 to 20; and containing suitable amounts of a cross-linking agent and a photoactivator.

Dependencies are inferred from the claim text.